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                <h1 id="1-举例"><a href="#1-举例" class="headerlink" title="1. 举例"></a>1. 举例</h1><ul>
<li>委托类</li>
</ul>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br></pre></td><td class="code"><pre><span class="line">public class DelegateClass &#123;</span><br><span class="line"></span><br><span class="line">    public DelegateClass() &#123;</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    public DelegateClass(String string) &#123;</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    public boolean add(String string, int i) &#123;</span><br><span class="line">        System.out.println(&quot;This is add method: &quot; + string + &quot;, &quot; + i);</span><br><span class="line">        return true;</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    public void update() &#123;</span><br><span class="line">        System.out.println(&quot;This is update method&quot;);</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>

<p>测试</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br></pre></td><td class="code"><pre><span class="line">public static void main(String[] args) throws Exception &#123;</span><br><span class="line">    &#x2F;&#x2F; 保留生成的FastClass类文件</span><br><span class="line">    System.setProperty(DebuggingClassWriter.DEBUG_LOCATION_PROPERTY, &quot;D:\\Temp\\CGLib\\FastClass&quot;);</span><br><span class="line"></span><br><span class="line">    Class delegateClass &#x3D; DelegateClass.class;</span><br><span class="line"></span><br><span class="line">    &#x2F;&#x2F; Java Reflect</span><br><span class="line"></span><br><span class="line">    &#x2F;&#x2F; 反射构造类</span><br><span class="line">    Constructor delegateConstructor &#x3D; delegateClass.getConstructor(String.class);</span><br><span class="line">    &#x2F;&#x2F; 创建委托类实例</span><br><span class="line">    DelegateClass delegateInstance &#x3D; (DelegateClass) delegateConstructor.newInstance(&quot;Tom&quot;);</span><br><span class="line"></span><br><span class="line">    &#x2F;&#x2F; 反射方法类</span><br><span class="line">    Method addMethod &#x3D; delegateClass.getMethod(&quot;add&quot;, String.class, int.class);</span><br><span class="line">    &#x2F;&#x2F; 调用方法</span><br><span class="line">    addMethod.invoke(delegateInstance, &quot;Tom&quot;, 30);</span><br><span class="line"></span><br><span class="line">    Method updateMethod &#x3D; delegateClass.getMethod(&quot;update&quot;);</span><br><span class="line">    updateMethod.invoke(delegateInstance);</span><br><span class="line"></span><br><span class="line">    &#x2F;&#x2F; CGLib FastClass</span><br><span class="line">    &#x2F;&#x2F; FastClass动态子类实例</span><br><span class="line">    FastClass fastClass &#x3D; FastClass.create(DelegateClass.class);</span><br><span class="line"></span><br><span class="line">    &#x2F;&#x2F; 创建委托类实例</span><br><span class="line">    DelegateClass fastInstance &#x3D; (DelegateClass) fastClass.newInstance(</span><br><span class="line">        new Class[] &#123;String.class&#125;, new Object[]&#123;&quot;Jack&quot;&#125;);</span><br><span class="line"></span><br><span class="line">    &#x2F;&#x2F; 调用委托类方法</span><br><span class="line">    fastClass.invoke(&quot;add&quot;, new Class[]&#123; String.class, int.class&#125;, fastInstance, </span><br><span class="line">        new Object[]&#123; &quot;Jack&quot;, 25&#125;);</span><br><span class="line">    fastClass.invoke(&quot;update&quot;, new Class[]&#123;&#125;, fastInstance, new Object[]&#123;&#125;);</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>

<h1 id="2-FastClass"><a href="#2-FastClass" class="headerlink" title="2. FastClass"></a>2. FastClass</h1><p>FastClass不使用反射类（Constructor或Method）来调用委托类方法，而是动态生成一个新的类（继承FastClass），向类中写入委托类实例直接调用方法的语句，用模板方式解决Java语法不支持问题，同时改善Java反射性能。</p>
<p>动态类为委托类方法调用语句建立索引，使用者根据方法签名（方法名+参数类型）得到索引值，再通过索引值进入相应的方法调用语句，得到调用结果。</p>
<ul>
<li><p>FastClass</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br><span class="line">68</span><br><span class="line">69</span><br><span class="line">70</span><br><span class="line">71</span><br><span class="line">72</span><br><span class="line">73</span><br><span class="line">74</span><br><span class="line">75</span><br><span class="line">76</span><br></pre></td><td class="code"><pre><span class="line">public abstract class FastClass&#123;</span><br><span class="line"></span><br><span class="line">    &#x2F;&#x2F; 委托类</span><br><span class="line">    private Class type;</span><br><span class="line">    </span><br><span class="line">    &#x2F;&#x2F; 子类访问构造方法</span><br><span class="line">    protected FastClass() &#123;&#125;</span><br><span class="line">    protected FastClass(Class type) &#123;</span><br><span class="line">        this.type &#x3D; type;</span><br><span class="line">    &#125;</span><br><span class="line">    </span><br><span class="line">    &#x2F;&#x2F; 创建动态FastClass子类</span><br><span class="line">    public static FastClass create(Class type) &#123;</span><br><span class="line">        &#x2F;&#x2F; Generator：子类生成器，继承AbstractClassGenerator</span><br><span class="line">        Generator gen &#x3D; new Generator();</span><br><span class="line">        gen.setType(type);</span><br><span class="line">        gen.setClassLoader(type.getClassLoader());</span><br><span class="line">        return gen.create();</span><br><span class="line">    &#125;</span><br><span class="line">    </span><br><span class="line">    &#x2F;**</span><br><span class="line">     * 调用委托类方法</span><br><span class="line">     *</span><br><span class="line">     * @param name 方法名</span><br><span class="line">     * @param parameterTypes 方法参数类型</span><br><span class="line">     * @param obj 委托类实例</span><br><span class="line">     * @param args 方法参数对象</span><br><span class="line">     *&#x2F;</span><br><span class="line">    public Object invoke(String name, Class[] parameterTypes, Object obj, Object[] args) &#123;</span><br><span class="line">        return invoke(getIndex(name, parameterTypes), obj, args);</span><br><span class="line">    &#125;</span><br><span class="line">    </span><br><span class="line">    &#x2F;**</span><br><span class="line">     * 根据方法描述符找到方法索引</span><br><span class="line">     *</span><br><span class="line">     * @param name 方法名</span><br><span class="line">     * @param parameterTypes 方法参数类型</span><br><span class="line">     *&#x2F;</span><br><span class="line">    public abstract int getIndex(String name, Class[] parameterTypes);</span><br><span class="line">    </span><br><span class="line">    </span><br><span class="line">    &#x2F;**</span><br><span class="line">     * 根据方法索引调用委托类方法</span><br><span class="line">     *</span><br><span class="line">     * @param index 方法索引</span><br><span class="line">     * @param obj 委托类实例</span><br><span class="line">     * @param args 方法参数对象</span><br><span class="line">     *&#x2F;</span><br><span class="line">    public abstract Object invoke(int index, Object obj, Object[] args);</span><br><span class="line">    </span><br><span class="line">    &#x2F;**</span><br><span class="line">     * 调用委托类构造方法</span><br><span class="line">     * </span><br><span class="line">     * @param parameterTypes 构造方法参数类型</span><br><span class="line">     * @param args 构造方法参数对象</span><br><span class="line">     *&#x2F;</span><br><span class="line">    public Object newInstance(Class[] parameterTypes, Object[] args) throws &#123;</span><br><span class="line">        return newInstance(getIndex(parameterTypes), args);</span><br><span class="line">    &#125;</span><br><span class="line">    </span><br><span class="line">    &#x2F;**</span><br><span class="line">     * 根据构造方法描述符（参数类型）找到构造方法索引</span><br><span class="line">     *</span><br><span class="line">     * @param parameterTypes 构造方法参数类型</span><br><span class="line">     *&#x2F;</span><br><span class="line">    public abstract int getIndex(Class[] parameterTypes);</span><br><span class="line">    </span><br><span class="line">    &#x2F;**</span><br><span class="line">     * 根据构造方法索引调用委托类构造方法</span><br><span class="line">     *</span><br><span class="line">     * @param index 构造方法索引</span><br><span class="line">     * @param args 构造方法参数对象</span><br><span class="line">     *&#x2F;</span><br><span class="line">    public abstract Object newInstance(int index, Object[] args);</span><br><span class="line">    </span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>

<p>动态子类</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br><span class="line">68</span><br><span class="line">69</span><br><span class="line">70</span><br><span class="line">71</span><br><span class="line">72</span><br><span class="line">73</span><br><span class="line">74</span><br><span class="line">75</span><br><span class="line">76</span><br><span class="line">77</span><br><span class="line">78</span><br><span class="line">79</span><br><span class="line">80</span><br><span class="line">81</span><br><span class="line">82</span><br><span class="line">83</span><br><span class="line">84</span><br><span class="line">85</span><br><span class="line">86</span><br><span class="line">87</span><br><span class="line">88</span><br><span class="line">89</span><br><span class="line">90</span><br><span class="line">91</span><br><span class="line">92</span><br><span class="line">93</span><br><span class="line">94</span><br><span class="line">95</span><br><span class="line">96</span><br><span class="line">97</span><br><span class="line">98</span><br><span class="line">99</span><br><span class="line">100</span><br><span class="line">101</span><br><span class="line">102</span><br><span class="line">103</span><br><span class="line">104</span><br><span class="line">105</span><br><span class="line">106</span><br><span class="line">107</span><br><span class="line">108</span><br><span class="line">109</span><br><span class="line">110</span><br><span class="line">111</span><br><span class="line">112</span><br><span class="line">113</span><br><span class="line">114</span><br><span class="line">115</span><br><span class="line">116</span><br><span class="line">117</span><br><span class="line">118</span><br><span class="line">119</span><br><span class="line">120</span><br><span class="line">121</span><br><span class="line">122</span><br><span class="line">123</span><br><span class="line">124</span><br><span class="line">125</span><br><span class="line">126</span><br><span class="line">127</span><br><span class="line">128</span><br><span class="line">129</span><br><span class="line">130</span><br><span class="line">131</span><br><span class="line">132</span><br><span class="line">133</span><br><span class="line">134</span><br><span class="line">135</span><br><span class="line">136</span><br><span class="line">137</span><br><span class="line">138</span><br><span class="line">139</span><br><span class="line">140</span><br><span class="line">141</span><br><span class="line">142</span><br><span class="line">143</span><br><span class="line">144</span><br><span class="line">145</span><br><span class="line">146</span><br><span class="line">147</span><br><span class="line">148</span><br><span class="line">149</span><br><span class="line">150</span><br><span class="line">151</span><br><span class="line">152</span><br><span class="line">153</span><br><span class="line">154</span><br><span class="line">155</span><br><span class="line">156</span><br><span class="line">157</span><br><span class="line">158</span><br><span class="line">159</span><br><span class="line">160</span><br><span class="line">161</span><br></pre></td><td class="code"><pre><span class="line">public class DelegateClass$$FastClassByCGLIB$$4af5b667 extends FastClass &#123;</span><br><span class="line">    </span><br><span class="line">    &#x2F;**</span><br><span class="line">     * 动态子类构造方法</span><br><span class="line">     *&#x2F;</span><br><span class="line">    public DelegateClass$$FastClassByCGLIB$$4af5b667(Class delegateClass) &#123;</span><br><span class="line">        super(delegateClass);</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    &#x2F;**</span><br><span class="line">     * 根据方法签名得到方法索引</span><br><span class="line">     *</span><br><span class="line">     * @param name 方法名</span><br><span class="line">     * @param parameterTypes 方法参数类型</span><br><span class="line">     *&#x2F;</span><br><span class="line">    public int getIndex(String methodName, Class[] parameterTypes) &#123;</span><br><span class="line">        switch(methodName.hashCode()) &#123;</span><br><span class="line">            </span><br><span class="line">            &#x2F;&#x2F; 委托类方法add索引：0</span><br><span class="line">            case 96417:</span><br><span class="line">                if (methodName.equals(&quot;add&quot;)) &#123;</span><br><span class="line">                    switch(parameterTypes.length) &#123;</span><br><span class="line">                        case 2:</span><br><span class="line">                            if (parameterTypes[0].getName().equals(&quot;java.lang.String&quot;) &amp;&amp; </span><br><span class="line">                                parameterTypes[1].getName().equals(&quot;int&quot;)) &#123;</span><br><span class="line">                                return 0;</span><br><span class="line">                            &#125;</span><br><span class="line">                    &#125;</span><br><span class="line">                &#125;</span><br><span class="line">                break;</span><br><span class="line">            </span><br><span class="line">            &#x2F;&#x2F; 委托类方法update索引：1</span><br><span class="line">            case -838846263:</span><br><span class="line">                if (methodName.equals(&quot;update&quot;)) &#123;</span><br><span class="line">                    switch(parameterTypes.length) &#123;</span><br><span class="line">                        case 0:</span><br><span class="line">                            return 1;</span><br><span class="line">                    &#125;</span><br><span class="line">                &#125;</span><br><span class="line">                break;</span><br><span class="line">                </span><br><span class="line">            &#x2F;&#x2F; Object方法equals索引：2</span><br><span class="line">            case -1295482945:</span><br><span class="line">                if (methodName.equals(&quot;equals&quot;)) &#123;</span><br><span class="line">                    switch(parameterTypes.length) &#123;</span><br><span class="line">                        case 1:</span><br><span class="line">                            if (parameterTypes[0].getName().equals(&quot;java.lang.Object&quot;)) &#123;</span><br><span class="line">                                return 2;</span><br><span class="line">                            &#125;</span><br><span class="line">                    &#125;</span><br><span class="line">                &#125;</span><br><span class="line">                break;</span><br><span class="line">            </span><br><span class="line">            &#x2F;&#x2F; Object方法toString索引：3</span><br><span class="line">            case -1776922004:</span><br><span class="line">                if (methodName.equals(&quot;toString&quot;)) &#123;</span><br><span class="line">                    switch(parameterTypes.length) &#123;</span><br><span class="line">                        case 0: return 3;</span><br><span class="line">                    &#125;</span><br><span class="line">                &#125;</span><br><span class="line">                break;</span><br><span class="line">            </span><br><span class="line">            &#x2F;&#x2F; Object方法hashCode索引：4</span><br><span class="line">            case 147696667:</span><br><span class="line">                if (methodName.equals(&quot;hashCode&quot;)) &#123;</span><br><span class="line">                    switch(parameterTypes.length) &#123;</span><br><span class="line">                        case 0:</span><br><span class="line">                            return 4;</span><br><span class="line">                    &#125;</span><br><span class="line">                &#125;</span><br><span class="line">        &#125;</span><br><span class="line"></span><br><span class="line">        return -1;</span><br><span class="line">    &#125;</span><br><span class="line">    </span><br><span class="line">    &#x2F;**</span><br><span class="line">     * 根据方法索引调用委托类方法</span><br><span class="line">     *</span><br><span class="line">     * @param methodIndex 方法索引</span><br><span class="line">     * @param delegateInstance 委托类实例</span><br><span class="line">     * @param parameterValues 方法参数对象</span><br><span class="line">     *&#x2F;</span><br><span class="line">    public Object invoke(int methodIndex, Object delegateInstance, Object[] parameterValues) &#123;</span><br><span class="line">        DelegateClass instance &#x3D; (DelegateClass) delegateInstance;</span><br><span class="line">        int index &#x3D; methodIndex;</span><br><span class="line">        try &#123;</span><br><span class="line">            switch(index) &#123;</span><br><span class="line">                case 0:</span><br><span class="line">                    &#x2F;&#x2F; 委托类实例直接调用方法语句</span><br><span class="line">                    return new Boolean(instance.add((String)parameterValues[0], </span><br><span class="line">                            ((Number)parameterValues[1]).intValue()));</span><br><span class="line">                case 1:</span><br><span class="line">                    instance.update();</span><br><span class="line">                    return null;</span><br><span class="line">                case 2:</span><br><span class="line">                    return new Boolean(instance.equals(parameterValues[0]));</span><br><span class="line">                case 3:</span><br><span class="line">                    return instance.toString();</span><br><span class="line">                case 4:</span><br><span class="line">                    return new Integer(instance.hashCode());</span><br><span class="line">            &#125;</span><br><span class="line">        &#125; catch (Throwable t) &#123;</span><br><span class="line">            throw new InvocationTargetException(t);</span><br><span class="line">        &#125;</span><br><span class="line"></span><br><span class="line">        throw new IllegalArgumentException(&quot;Cannot find matching method&#x2F;constructor&quot;);</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    &#x2F;**</span><br><span class="line">     * 根据构造方法描述符（参数类型）找到构造方法索引</span><br><span class="line">     *</span><br><span class="line">     * @param parameterTypes 构造方法参数类型</span><br><span class="line">     *&#x2F;</span><br><span class="line">    public int getIndex(Class[] parameterTypes) &#123;</span><br><span class="line">        switch(parameterTypes.length) &#123;</span><br><span class="line">            &#x2F;&#x2F; 无参构造方法索引：0</span><br><span class="line">            case 0:</span><br><span class="line">                return 0;</span><br><span class="line">            </span><br><span class="line">            &#x2F;&#x2F; 有参构造方法索引：1</span><br><span class="line">            case 1:</span><br><span class="line">                if (parameterTypes[0].getName().equals(&quot;java.lang.String&quot;)) &#123;</span><br><span class="line">                    return 1;</span><br><span class="line">                &#125;</span><br><span class="line">            default:</span><br><span class="line">                return -1;</span><br><span class="line">        &#125;</span><br><span class="line">    &#125;</span><br><span class="line">    </span><br><span class="line">    &#x2F;**</span><br><span class="line">     * 根据构造方法索引调用委托类构造方法</span><br><span class="line">     *</span><br><span class="line">     * @param methodIndex 构造方法索引</span><br><span class="line">     * @param parameterValues 构造方法参数对象</span><br><span class="line">     *&#x2F;</span><br><span class="line">    public Object newInstance(int methodIndex, Object[] parameterValues) &#123;</span><br><span class="line">        &#x2F;&#x2F; 创建委托类实例</span><br><span class="line">        DelegateClass newInstance &#x3D; new DelegateClass;</span><br><span class="line">        DelegateClass newObject &#x3D; newInstance;</span><br><span class="line">        int index &#x3D; methodIndex;</span><br><span class="line">        try &#123;</span><br><span class="line">            switch(index) &#123;</span><br><span class="line">                &#x2F;&#x2F; 调用构造方法（&lt;init&gt;）</span><br><span class="line">                case 0:</span><br><span class="line">                    newObject.&lt;init&gt;();</span><br><span class="line">                    return newInstance;</span><br><span class="line">                case 1:</span><br><span class="line">                    newObject.&lt;init&gt;((String)parameterValues[0]);</span><br><span class="line">                    return newInstance;</span><br><span class="line">            &#125;</span><br><span class="line">        &#125; catch (Throwable t) &#123;</span><br><span class="line">            throw new InvocationTargetException(t);</span><br><span class="line">        &#125;</span><br><span class="line"></span><br><span class="line">        throw new IllegalArgumentException(&quot;Cannot find matching method&#x2F;constructor&quot;);</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    public int getMaxIndex() &#123;</span><br><span class="line">        return 4;</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure></li>
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